Photovoltaic area combiner box inspection report form

What are the mounting and grounding procedures for a PV module?

The PV module mounting and grounding procedures used should follow the instructions provided in the installation manuals for the racking system and the PV module. The mounting structure or racking system wind loading and snow loading requirements are met, and the array setbacks from the roof edge meet fire codes.

What are the requirements for a roof-mounted PV system?

Firefighter access according to approved plan. Roof-mounted PV systems have the required fire classification (CBC 1505.9 or CRC R902.4). Grounding/bonding of rack and modules according to the manufacturer’s installation instructions that are approved and listed.

What should be included in a MC4 connector plan?

The plan should also include the content and locations of any required labeling throughout the system (photo 2). In addition to the required labeling, the location of disconnects, load centers, and other equipment should be marked on the plans. Photo 1. All MC-4 Type connectors may not be compatible unless listed in matching pairs.

Do roof-mounted PV panels and modules have a fire classification rating?

Rooftop-mounted PV panels and modules have the proper fire classification rating. (CBC 1509.7.2 & CRC R908.1.2)

Where should a photovoltaic circuit be located?

(CBC 1509.7.2 & CRC R908.1.2) Conduit, wiring systems and raceways for photovoltaic circuits are located as close as possible to the ridge, hip or valley and from the hip or valley as directly as possible to an outside wall to reduce trip hazards and maximize ventilation opportunities.

Where is a photovoltaic power source marking located?

Marking is placed adjacent to the main service disconnect in a location clearly visible from where the disconnect is operated. (CFC 605.11.1.3 & CRC R331.2.3) 67. The markings say “WARNING: PHOTOVOLTAIC POWER SOURCE” and have 3/8-inch (9.5 mm) minimum-sized white letters on a red background.